source: trunk/PrefsPane/src/NetworkSettingsUpdaterUI.m @ 1046

/* Copyright (C) 2008-2009 Peter Speck
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#import "NetworkSettingsUpdaterUI.h"
#import "GBDebug.h"
#import "ServerCommunication.h"
#import "AlertHelper.h"
#import "Prefs.h"

@interface NetworkSettingsUpdaterUI()

- (void)confirmUpdateAlertDidEndWithReturnCode:(NSInteger)returnCode;

@end

@implementation NetworkSettingsUpdaterUI

- (id)initWithServerCommunication:(ServerCommunication*)comm
                   withWantEnable:(BOOL)wantEnable;
{
    if ((self = [super initWithProxyPort:[comm getPortNumber] withWantEnable:wantEnable])) {
        _prefs = [[comm prefs] retain];
        _alertHelper = [[_prefs alertHelper] retain];
    }
    return self;
}

- (void)dealloc
{
    [_alertHelper release];
    [_prefs release];
    [super dealloc];
}

- (SCPreferencesRef)createSCPreferencesRef:(BOOL)commit
{
    CFStringRef appName = CFSTR("GlimmerBlocker");
    if (commit)
        return SCPreferencesCreateWithAuthorization(NULL, appName, NULL, [_prefs authRef]);
    else
        return SCPreferencesCreate(NULL, appName, NULL);
}

- (void)updateSettingsWithConfirm:(BOOL)confirm  withFeedbackIfUnchanged:(BOOL)feedbackIfUnchanged
{
    if (![_prefs hasGlimmerAuth]) {
        NSLog(@"Can't change network settings without auth. Should never happend.");
        return;
    }
    BOOL ok = [self updateSettingsWithCommit:NO];
    if (ok) {
        DebugNSLog(@"Network settings don't need update.");
        if (feedbackIfUnchanged) {
            [_alertHelper prepareInformativeAlertWithTitle:@"No changes required to proxy settings"
                                       withInformativeText:NULL];
            [_alertHelper showPreparedAlert];
        }
        return;
    }
    NSMutableString* sb = [NSMutableString stringWithCapacity:50];
    for (NSUInteger i = 0; i < [_actionDescription count]; i++) {
        NSString* s = [_actionDescription objectAtIndex:i];
        if ([sb length])
            [sb appendString:@"\n"];
        [sb appendString:s];
        DebugNSLog(@"%@", s);
    }
    if (confirm) {
        [_alertHelper prepareWarningAlertWithTitle:@"Update proxy settings in Network?"
                               withInformativeText:sb];
        [_alertHelper setDelegate:self
                     withSelector:@selector(confirmUpdateAlertDidEndWithReturnCode:)];
        [_alertHelper addButtonWithTitle:@"Yes"];
        [_alertHelper addButtonWithTitle:@"No"];
        [_alertHelper showPreparedAlert];
        return;
    }
    ok = [self updateSettingsWithCommit:YES];
    if (!ok)
        return;
    ok = [self updateSettingsWithCommit:NO]; // check the settings was fully updated.
    if (!ok)
        NSLog(@"GlimmerBlocker failed updating network settings.");
}

- (void)confirmUpdateAlertDidEndWithReturnCode:(NSInteger)returnCode
{
    DebugNSLog(@"alertDidEnd, self-retain = %ld, returnCode = %ld", (long)[self retainCount], (long)returnCode);
    if (returnCode == NSAlertFirstButtonReturn)
        [self updateSettingsWithConfirm:NO withFeedbackIfUnchanged:NO];
}

@end